发明名称 |
SYSTEMS AND METHODS TO INITIATE UPDATING OF REFERENCE VOLTAGES |
摘要 |
In a data storage device that includes a non-volatile memory, a method includes determining that a current error correction code page count (CEC) is at least as large as a target error correction code page count (TEC). The CEC is a page count of error correction code (ECC) pages of data read from the memory during a time period from a previous time to a particular time using a set of reference voltages. In response to the CEC being at least as large as the TEC, the method includes updating a subset of the set of reference voltages conditioned upon a difference between a current mean error count (CMEC) and a previous mean error count being at least as large as a target mean delta error. The CMEC is based on a count of read errors associated with the ECC pages read during the time period. |
申请公布号 |
US2014068382(A1) |
申请公布日期 |
2014.03.06 |
申请号 |
US201213630686 |
申请日期 |
2012.09.28 |
申请人 |
SANDISK TECHNOLOGIES INC. |
发明人 |
DESIREDDI SATEESH;NARADASI JAYAPRAKASH;VENKITACHALAM ANAND;D'ABREU MANUEL ANTONIO;SKALA STEPHEN |
分类号 |
H03M13/05 |
主分类号 |
H03M13/05 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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